diff options
Diffstat (limited to 'xlators/features/quota/src/quota.c')
| -rw-r--r-- | xlators/features/quota/src/quota.c | 243 |
1 files changed, 212 insertions, 31 deletions
diff --git a/xlators/features/quota/src/quota.c b/xlators/features/quota/src/quota.c index 7d5f74e9c..c527e7ca7 100644 --- a/xlators/features/quota/src/quota.c +++ b/xlators/features/quota/src/quota.c @@ -1,22 +1,12 @@ /* - Copyright (c) 2008-2011 Gluster, Inc. <http://www.gluster.com> - This file is part of GlusterFS. - - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. -*/ + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ #include <fnmatch.h> #include "quota.h" @@ -136,6 +126,7 @@ quota_local_cleanup (xlator_t *this, quota_local_t *local) inode_unref (local->inode); LOCK_DESTROY (&local->lock); + mem_put (local); out: return 0; } @@ -497,8 +488,7 @@ quota_get_limit_value (inode_t *inode, xlator_t *this, int64_t *n) } out: - if (path) - GF_FREE (path); + GF_FREE (path); return ret; } @@ -2704,7 +2694,6 @@ int quota_setxattr (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *dict, int flags, dict_t *xdata) { - data_pair_t *trav = NULL; int op_errno = EINVAL; int op_ret = -1; @@ -2713,7 +2702,7 @@ quota_setxattr (call_frame_t *frame, xlator_t *this, VALIDATE_OR_GOTO (loc, err); GF_IF_INTERNAL_XATTR_GOTO ("trusted.glusterfs.quota*", dict, - trav, op_errno, err); + op_errno, err); STACK_WIND (frame, quota_setxattr_cbk, FIRST_CHILD(this), @@ -2737,7 +2726,6 @@ int quota_fsetxattr (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *dict, int flags, dict_t *xdata) { - data_pair_t *trav = NULL; int32_t op_ret = -1; int32_t op_errno = EINVAL; @@ -2746,7 +2734,7 @@ quota_fsetxattr (call_frame_t *frame, xlator_t *this, fd_t *fd, VALIDATE_OR_GOTO (fd, err); GF_IF_INTERNAL_XATTR_GOTO ("trusted.glusterfs.quota*", dict, - trav, op_errno, err); + op_errno, err); STACK_WIND (frame, quota_fsetxattr_cbk, FIRST_CHILD(this), @@ -2908,8 +2896,11 @@ int32_t quota_statfs (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) { inode_t *root_inode = NULL; + quota_priv_t *priv = NULL; + + priv = this->private; - if (loc->inode) { + if (priv->consider_statfs && loc->inode) { root_inode = loc->inode->table->root; inode_ref(root_inode); STACK_WIND_COOKIE (frame, quota_statfs_cbk, root_inode, @@ -2923,9 +2914,13 @@ quota_statfs (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) * which is exactly what would happen with STACK_UNWIND using * that as a callback. Therefore, use default_statfs_cbk in * this case instead. + * + * Also if the option deem-statfs is not set to "on" don't + * bother calculating quota limit on / in statfs_cbk. */ - gf_log(this->name,GF_LOG_WARNING, - "missing inode, cannot adjust for quota"); + if (priv->consider_statfs) + gf_log(this->name,GF_LOG_WARNING, + "missing inode, cannot adjust for quota"); STACK_WIND (frame, default_statfs_cbk, FIRST_CHILD(this), FIRST_CHILD(this)->fops->statfs, loc, xdata); } @@ -2974,6 +2969,177 @@ err: return 0; } +int32_t +quota_fallocate_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) +{ + int32_t ret = 0; + uint64_t ctx_int = 0; + quota_inode_ctx_t *ctx = NULL; + quota_local_t *local = NULL; + quota_dentry_t *dentry = NULL; + int64_t delta = 0; + + local = frame->local; + + if ((op_ret < 0) || (local == NULL)) { + goto out; + } + + ret = inode_ctx_get (local->loc.inode, this, &ctx_int); + if (ret) { + gf_log (this->name, GF_LOG_WARNING, + "%s: failed to get the context", local->loc.path); + goto out; + } + + ctx = (quota_inode_ctx_t *)(unsigned long) ctx_int; + + if (ctx == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "quota context not set in %s (gfid:%s)", + local->loc.path, uuid_utoa (local->loc.inode->gfid)); + goto out; + } + + LOCK (&ctx->lock); + { + ctx->buf = *postbuf; + } + UNLOCK (&ctx->lock); + + list_for_each_entry (dentry, &ctx->parents, next) { + delta = (postbuf->ia_blocks - prebuf->ia_blocks) * 512; + quota_update_size (this, local->loc.inode, + dentry->name, dentry->par, delta); + } + +out: + QUOTA_STACK_UNWIND (fallocate, frame, op_ret, op_errno, prebuf, postbuf, + xdata); + + return 0; +} + +int32_t +quota_fallocate_helper(call_frame_t *frame, xlator_t *this, fd_t *fd, + int32_t mode, off_t offset, size_t len, dict_t *xdata) +{ + quota_local_t *local = NULL; + int32_t op_errno = EINVAL; + + local = frame->local; + if (local == NULL) { + gf_log (this->name, GF_LOG_WARNING, "local is NULL"); + goto unwind; + } + + if (local->op_ret == -1) { + op_errno = local->op_errno; + goto unwind; + } + + STACK_WIND (frame, quota_fallocate_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fallocate, fd, mode, offset, len, + xdata); + return 0; + +unwind: + QUOTA_STACK_UNWIND (fallocate, frame, -1, op_errno, NULL, NULL, NULL); + return 0; +} + +int32_t +quota_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t mode, + off_t offset, size_t len, dict_t *xdata) +{ + int32_t ret = -1, op_errno = EINVAL; + int32_t parents = 0; + quota_local_t *local = NULL; + quota_inode_ctx_t *ctx = NULL; + quota_priv_t *priv = NULL; + call_stub_t *stub = NULL; + quota_dentry_t *dentry = NULL; + + GF_ASSERT (frame); + GF_VALIDATE_OR_GOTO ("quota", this, unwind); + GF_VALIDATE_OR_GOTO (this->name, fd, unwind); + + local = quota_local_new (); + if (local == NULL) { + goto unwind; + } + + frame->local = local; + local->loc.inode = inode_ref (fd->inode); + + ret = quota_inode_ctx_get (fd->inode, -1, this, NULL, NULL, &ctx, 0); + if (ctx == NULL) { + gf_log (this->name, GF_LOG_WARNING, + "quota context not set in inode (gfid:%s)", + uuid_utoa (fd->inode->gfid)); + goto unwind; + } + + stub = fop_fallocate_stub(frame, quota_fallocate_helper, fd, mode, offset, len, + xdata); + if (stub == NULL) { + op_errno = ENOMEM; + goto unwind; + } + + priv = this->private; + GF_VALIDATE_OR_GOTO (this->name, priv, unwind); + + LOCK (&ctx->lock); + { + list_for_each_entry (dentry, &ctx->parents, next) { + parents++; + } + } + UNLOCK (&ctx->lock); + + /* + * Note that by using len as the delta we're assuming the range from + * offset to offset+len has not already been allocated. This can result + * in ENOSPC errors attempting to allocate an already allocated range. + */ + local->delta = len; + local->stub = stub; + local->link_count = parents; + + list_for_each_entry (dentry, &ctx->parents, next) { + ret = quota_check_limit (frame, fd->inode, this, dentry->name, + dentry->par); + if (ret == -1) { + break; + } + } + + stub = NULL; + + LOCK (&local->lock); + { + local->link_count = 0; + if (local->validate_count == 0) { + stub = local->stub; + local->stub = NULL; + } + } + UNLOCK (&local->lock); + + if (stub != NULL) { + call_resume (stub); + } + + return 0; + +unwind: + QUOTA_STACK_UNWIND (fallocate, frame, -1, op_errno, NULL, NULL, NULL); + return 0; +} + int32_t mem_acct_init (xlator_t *this) @@ -3037,14 +3203,17 @@ quota_parse_limits (quota_priv_t *priv, xlator_t *this, dict_t *xl_options, char *path = NULL, *saveptr = NULL; uint64_t value = 0; limits_t *quota_lim = NULL, *old = NULL; + char *last_colon= NULL; ret = dict_get_str (xl_options, "limit-set", &str); if (str) { - path = strtok_r (str, ":", &saveptr); + path = strtok_r (str, ",", &saveptr); while (path) { - str_val = strtok_r (NULL, ",", &saveptr); + last_colon = strrchr (path, ':'); + *last_colon = '\0'; + str_val = last_colon + 1; ret = gf_string2bytesize (str_val, &value); if (ret != 0) @@ -3078,7 +3247,7 @@ quota_parse_limits (quota_priv_t *priv, xlator_t *this, dict_t *xl_options, } UNLOCK (&priv->lock); - path = strtok_r (NULL, ":", &saveptr); + path = strtok_r (NULL, ",", &saveptr); } } else { gf_log (this->name, GF_LOG_INFO, @@ -3134,6 +3303,7 @@ init (xlator_t *this) } GF_OPTION_INIT ("timeout", priv->timeout, int64, err); + GF_OPTION_INIT ("deem-statfs", priv->consider_statfs, bool, err); this->local_pool = mem_pool_new (quota_local_t, 64); if (!this->local_pool) { @@ -3233,9 +3403,10 @@ reconfigure (xlator_t *this, dict_t *options) LOCK (&priv->lock); { - list_for_each_entry (limit, &priv->limit_head, limit_list) { - top = ((glusterfs_ctx_t *)this->ctx)->active->top; + top = ((glusterfs_ctx_t *)this->ctx)->active->top; + GF_ASSERT (top); + list_for_each_entry (limit, &priv->limit_head, limit_list) { __quota_reconfigure (this, top->itable, limit); } @@ -3261,6 +3432,8 @@ reconfigure (xlator_t *this, dict_t *options) UNLOCK (&priv->lock); GF_OPTION_RECONF ("timeout", priv->timeout, options, int64, out); + GF_OPTION_RECONF ("deem-statfs", priv->consider_statfs, options, bool, + out); ret = 0; out: @@ -3302,6 +3475,7 @@ struct xlator_fops fops = { .removexattr = quota_removexattr, .fremovexattr = quota_fremovexattr, .readdirp = quota_readdirp, + .fallocate = quota_fallocate, }; struct xlator_cbks cbks = { @@ -3318,5 +3492,12 @@ struct volume_options options[] = { .description = "quota caches the directory sizes on client. Timeout " "indicates the timeout for the cache to be revalidated." }, + {.key = {"deem-statfs"}, + .type = GF_OPTION_TYPE_BOOL, + .default_value = "off", + .description = "If set to on, it takes quota limits into" + "consideration while estimating fs size. (df command)" + " (Default is off)." + }, {.key = {NULL}} }; |
